JPS5834042B2 - Hatsushinki - Google Patents
HatsushinkiInfo
- Publication number
- JPS5834042B2 JPS5834042B2 JP50126794A JP12679475A JPS5834042B2 JP S5834042 B2 JPS5834042 B2 JP S5834042B2 JP 50126794 A JP50126794 A JP 50126794A JP 12679475 A JP12679475 A JP 12679475A JP S5834042 B2 JPS5834042 B2 JP S5834042B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- case
- recess
- crystal resonator
- oscillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000013078 crystal Substances 0.000 claims description 26
- 230000010355 oscillation Effects 0.000 description 31
- 239000003990 capacitor Substances 0.000 description 17
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
- G04F5/063—Constructional details
- G04F5/066—Trimmer condensators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
- H01G5/04—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode
- H01G5/06—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode due to rotation of flat or substantially flat electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
- H01G5/16—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of distance between electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
- H03K3/03—Astable circuits
- H03K3/0307—Stabilisation of output, e.g. using crystal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/0014—Structural aspects of oscillators
- H03B2200/0018—Structural aspects of oscillators relating to the cutting angle of a crystal, e.g. AT cut quartz
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/006—Functional aspects of oscillators
- H03B2200/0088—Reduction of noise
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/01—Varying the frequency of the oscillations by manual means
- H03B2201/011—Varying the frequency of the oscillations by manual means the means being an element with a variable capacitance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
- H03B2202/04—Reduction of undesired oscillations originated from outside noise or interferences, e.g. from parasitic couplings with circuit elements outside the oscillator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Electric Clocks (AREA)
Description
【発明の詳細な説明】
本発明は水晶振動子等の結晶振動子を備えた発振器に関
し、長に詳細には実装上の問題点を克服し得るようにし
た発振器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oscillator equipped with a crystal resonator such as a crystal resonator, and more particularly to an oscillator that can overcome mounting problems.
発振器は、電子時計、通信機等の電子装置の内部に組み
込まれて広く使用されるが、多くの場合には電子装置を
構成する電子回路が設けられる回路基板上に集積化され
て収められている。Oscillators are widely used built into electronic devices such as electronic watches and communication devices, but in many cases they are integrated and housed on a circuit board on which the electronic circuits that make up the electronic device are installed. There is.
しかし、発振器の発振回路に用いられる結晶振動子は、
外部の影響を避けるためケースに収められ、リード線を
介して回路基板に接続されている。However, the crystal resonator used in the oscillation circuit of the oscillator is
It is housed in a case to avoid external influences and is connected to the circuit board via lead wires.
結晶振動子、例えばATカット厚みすべり水晶振動子を
用いた発振回路は、第1図に一例を示すように水晶振動
子1と、インバータ2と、帰還用抵抗3と、発振周波数
調整用のトリマーコンデンサ4と、温度補償用コンデン
サ5とから構成されている。An oscillation circuit using a crystal resonator, such as an AT-cut thickness-shear crystal resonator, includes a crystal resonator 1, an inverter 2, a feedback resistor 3, and a trimmer for adjusting the oscillation frequency, as shown in FIG. It consists of a capacitor 4 and a temperature compensation capacitor 5.
かかる発振回路等の電気回路中に含まれる水晶振動子等
の等価電気回路は、例えば第2図に示すように、LとR
とCとの直列回路とそれに並列に入るCoとを含んだも
のとして表わすことができる。An equivalent electric circuit such as a crystal resonator included in such an electric circuit such as an oscillation circuit is, for example, as shown in FIG.
It can be expressed as a circuit including a series circuit of C and C and a Co connected in parallel to the series circuit.
LとRとCは水晶振動子が振動したときの動インピーダ
ンスを決定するインダクタンス、抵抗、容量で、Coは
水晶振動子の電極間静電容量である。L, R, and C are inductance, resistance, and capacitance that determine the dynamic impedance when the crystal resonator vibrates, and Co is the interelectrode capacitance of the crystal resonator.
水晶振動子自体の等価電気回路は上記したものであるが
、実際には第1図および第2図においてCS /で示す
ようにリード線、その他の影響によって浮遊容量が上記
Coに並列に入ってくる。The equivalent electric circuit of the crystal resonator itself is as described above, but in reality, as shown by CS / in Figures 1 and 2, stray capacitance enters parallel to Co due to lead wires and other influences. come.
電子腕時計を例にとると、時計本体に組み込む前の回路
基板上においては正常に発振動作する発振器も他の部品
と供に時計本体内に組み込むことによって上記した浮遊
容量cs、cs′、cs“の増加が避けられず、特に比
較的高い固有振動数をもち静電容量Coが小さい小型の
水晶振動子においては、浮遊容量C3tC8’ tC8
“にょる発振条件の変化が大きく、発振周波数が大きく
変化したり、発振が不安定になったり、停止したりする
。Taking an electronic wristwatch as an example, an oscillator that normally oscillates on a circuit board before being incorporated into the watch body is also incorporated into the watch body along with other parts to reduce the stray capacitances cs, cs', cs'' mentioned above. An increase in stray capacitance C3tC8' tC8 is unavoidable, especially in small crystal resonators with relatively high natural frequencies and small capacitance Co.
“There is a large change in the oscillation conditions, the oscillation frequency changes significantly, the oscillation becomes unstable, or it stops.
かかる発振回路を電子時計等の小型の電子装置中に組込
むと、その発振が停止するに到らなくとも組込み前の回
路基板で調整した発振周波数が大幅に変化し、再度調整
しなければならない事態が発生し、実装上の大きな問題
となっている。When such an oscillation circuit is incorporated into a small electronic device such as an electronic watch, even if the oscillation does not stop, the oscillation frequency adjusted on the circuit board before installation changes significantly and has to be adjusted again. This has caused a major implementation problem.
携帯用の電子腕時計などの小型電子装置では、狭い空間
内に回路基板を実装するため、更に上記した実装上の問
題は深刻なものとなっている。In small electronic devices such as portable electronic wristwatches, the circuit board is mounted in a narrow space, making the above-mentioned mounting problems even more serious.
本発明は、上述した実装上の問題点を除去し、発振周波
数の調整が容易で常に安定した発振周波数を得ることが
できるようにした発振器を提案するもので、以下図示し
た実施例を参照しながらその詳細を説明する。The present invention proposes an oscillator that eliminates the above-mentioned implementation problems and allows easy adjustment of the oscillation frequency to always obtain a stable oscillation frequency. The details will be explained below.
本発明に従う発振器の一実施例を示す第3図において、
符号6はケースで、セラミック等の絶縁体からなり内面
に無電界メッキ等で形成された金属層8を有した下部ケ
ース7と、同じく内面に金属層10を有し、かつ上記下
部ケースIに気密的に固定される上部ケース9とから形
成されている。In FIG. 3 showing an embodiment of an oscillator according to the present invention,
Reference numeral 6 denotes a case, which is made of an insulator such as ceramic and has a metal layer 8 formed by electroless plating on the inner surface thereof, and a lower case 7 which also has a metal layer 10 on the inner surface, and which is attached to the lower case I. It is formed from an upper case 9 that is airtightly fixed.
ケース6の内部には結晶振動子としてのATカット水晶
振動子11が、上記下部ケース1から伸びる一対の支持
部材12,13によって支持されている。Inside the case 6, an AT-cut crystal resonator 11 as a crystal resonator is supported by a pair of support members 12 and 13 extending from the lower case 1.
またケース6の下部ケース1には、発振回路を構成する
IC等の電子部品14が設けられ、上記電子部品14が
前記水晶振動子11の支持部材12.13に電気的に接
続されている。Further, the lower case 1 of the case 6 is provided with an electronic component 14 such as an IC that constitutes an oscillation circuit, and the electronic component 14 is electrically connected to the support members 12 and 13 of the crystal resonator 11.
ケース6の下部ケースγには、第4図に拡大して示すよ
うに凹部15が設けられ、上記凹部15の内部に発振周
波数調整用のトリマーコンデンサ16が形成されている
。The lower case γ of the case 6 is provided with a recess 15, as shown in an enlarged view in FIG. 4, and a trimmer capacitor 16 for adjusting the oscillation frequency is formed inside the recess 15.
上記トリマーコンデンサ16は、上記下部ケースγの凹
部15の底面に蒸着等の方法によって形成された金属膜
からなる電極11と、上記電極11の上部に形成された
絶縁層18と、上記凹部15を覆う蓋部19と、上記蓋
部19にネジ部20を介して回転移動9能に設けられた
ロータ電極21とから構成されている。The trimmer capacitor 16 includes an electrode 11 made of a metal film formed by a method such as vapor deposition on the bottom surface of the recess 15 of the lower case γ, an insulating layer 18 formed on the upper part of the electrode 11, and the recess 15. The rotor electrode 21 is comprised of a covering lid part 19 and a rotor electrode 21 rotatably provided on the lid part 19 via a threaded part 20.
上記電極1γは、リード部1γaを介して前記水晶振動
子11の支持部材13およびIC等の電子部品14に電
気的に接続される。The electrode 1γ is electrically connected to the support member 13 of the crystal resonator 11 and an electronic component 14 such as an IC via a lead portion 1γa.
ロータ電極21は、上記凹部15内に入れられる円板状
の電極部22と、上記電極部22に設けられた表面に前
記ネジ部20が形成された軸23と、上記軸23の一端
に設けられ上記蓋部19の外側に位置される頭部24と
からなり、上記頭部24を回転することによってロータ
電極21全体が回転されると共に矢印Aの方向に移動さ
れ、上記電極部22と前記凹部15の底部に形成された
電極11との間隔d1が可変される。The rotor electrode 21 includes a disk-shaped electrode portion 22 that is inserted into the recess 15, a shaft 23 on which the threaded portion 20 is formed on the surface of the electrode portion 22, and a shaft 23 provided at one end of the shaft 23. and a head 24 located on the outside of the lid 19. By rotating the head 24, the entire rotor electrode 21 is rotated and moved in the direction of arrow A. The distance d1 from the electrode 11 formed at the bottom of the recess 15 is variable.
上記ロータ電極21は、上記蓋部19の表面に形成され
たリード部21dによって前記IC等の電子部品14と
電気的に接続されている。The rotor electrode 21 is electrically connected to the electronic component 14 such as the IC through a lead portion 21d formed on the surface of the lid portion 19.
上記トリマーコンデンサ16は、上記電極1Tと、ロー
タ電極21の電極部22との間隔d1を9変調整するこ
とによって静電容量を可変調整することができる。The capacitance of the trimmer capacitor 16 can be variably adjusted by adjusting the distance d1 between the electrode 1T and the electrode portion 22 of the rotor electrode 21 by nine changes.
第5図はトリマーコンデンサの他の実施例を示すもので
、下部ケースγの凹部25には、その底面の略半分の面
積に相当する電極26が形成されると共に絶縁層27が
形成されている。FIG. 5 shows another embodiment of the trimmer capacitor, in which an electrode 26 corresponding to approximately half the area of the bottom surface is formed in the recess 25 of the lower case γ, and an insulating layer 27 is also formed. .
上記凹部25には蓋部28が設けられ、この蓋部28に
ロータ電極29が回転可能に設けられている。A cover 28 is provided in the recess 25, and a rotor electrode 29 is rotatably provided in the cover 28.
ロータ電極29は、上記凹部25の底面に対向する面の
略半分が低く、他の半分が高く形成された電極部30と
、上記電極部30から延び上記蓋部28に貫通装備され
る軸31と、上記軸31の先端に形成された頭部32と
から構成されている。The rotor electrode 29 includes an electrode portion 30 in which approximately half of the surface facing the bottom surface of the recess 25 is formed low and the other half is formed high, and a shaft 31 extending from the electrode portion 30 and penetrating the lid portion 28 . and a head 32 formed at the tip of the shaft 31.
上記トリマーコンデンサは、上記類532を回転するこ
とによってロータ電極29全体が回転され、上記ロータ
電極29の電極部30の高く形成された部分と、前記凹
部25の底部に形成された電極26との対向面積を変化
させることができ、静電容量をす麦調整することができ
る。In the above-mentioned trimmer capacitor, the whole rotor electrode 29 is rotated by rotating the above-mentioned type 532, and the high portion of the electrode portion 30 of the rotor electrode 29 and the electrode 26 formed at the bottom of the recess 25 are connected to each other. The facing area can be changed and the capacitance can be adjusted.
上記したトリマーコンデンサ16を有したケース6は、
電子装置、例えば携帯用の電子時計を構成する電子回路
(図示せず)が形成される回路基板33上に設けられて
いる。The case 6 having the trimmer capacitor 16 described above is
It is provided on a circuit board 33 on which an electronic circuit (not shown) constituting an electronic device, such as a portable electronic watch, is formed.
このように結晶振動子としての水晶振動子11を装備す
るケース6の一部にトリマーコンデンサ16を実装した
ことにより、発振回路部の浮遊容量を減少させることが
できると共に、電子腕時計等のような小型の電子装置の
内部の狭い空間内に組み込んだ場合でも上記浮遊容量が
大きく変化されることがなく、発振条件をはシ一定に保
つことができ安定した発振周波数を得ることができる。By mounting the trimmer capacitor 16 in a part of the case 6 equipped with the crystal oscillator 11 as a crystal oscillator, it is possible to reduce the stray capacitance of the oscillation circuit section, and also to reduce the stray capacitance of the oscillation circuit section. Even when the device is installed in a narrow space inside a small electronic device, the stray capacitance is not significantly changed, the oscillation conditions can be kept constant, and a stable oscillation frequency can be obtained.
また上記ケース6に発振回路を構成するIC等の電子部
品14を設けることにより、発振回路部の浮遊容量を更
に減少させることができ、発振周波数を安定させること
ができる。Further, by providing the electronic component 14 such as an IC constituting the oscillation circuit in the case 6, the stray capacitance of the oscillation circuit can be further reduced, and the oscillation frequency can be stabilized.
更に上記ケース6を回路基板33に取り付ける際に、ト
リマーコンデンサ16のロータ電極2L29の頭部24
または32を操作9能に設けておけ(f、電子装置内に
組み込み、唯一回の調整で発振周波数を正しく調整する
ことができ、周波数調整を正確に、しかも簡単に行うこ
とができ生産性の向上を図ることができる。Furthermore, when attaching the case 6 to the circuit board 33, the head 24 of the rotor electrode 2L29 of the trimmer capacitor 16
Or 32 can be installed in the operating function (f), and the oscillation frequency can be adjusted correctly with only one adjustment by incorporating it into the electronic device, and the frequency adjustment can be performed accurately and easily, increasing productivity. You can improve your performance.
以上、本発明の詳細を図示した実施例に基づき説明した
が、本発明は図示した実施例に限定されるものではなく
、例えばケースを金属材料によって形成することもでき
るが、この場合にはトリマ−コンデンサを形成する凹部
を絶縁体によって絶縁するなど、各種の変形をする必要
がある。Although the details of the present invention have been explained above based on the illustrated embodiments, the present invention is not limited to the illustrated embodiments. For example, the case may be formed of a metal material, but in this case, the trimmer - It is necessary to make various modifications, such as insulating the recess that forms the capacitor with an insulator.
また上記ケースに形成するトリマーコンデンサも図示し
た2つの実施例を組み合わせロータ電極の上下動と両電
極の対向面積を変化させる機構とを合わせもつ構造にす
る等、種々の変更、改良をなし得るものである。Furthermore, the trimmer capacitor formed in the case described above can be modified and improved in various ways, such as by combining the two illustrated embodiments to create a structure that has both the vertical movement of the rotor electrode and a mechanism for changing the facing area of both electrodes. It is.
上述したように本発明に従う発振器は、結晶振動子を装
備するケースに発振周波数調整用のトリマーコンデンサ
を設けたことにより、発振回路部の浮遊容量を減少させ
ることができると共に、上記浮遊容量の外的要因による
変化を減少させることができ、特に高い固有振動数をも
った小型の結晶振動子を使用した場合においても安定し
た発振周波数を得ることが可能で、更に上記トリマーコ
ンデンサによって簡単かつ正確に発振周波数の調整を行
うことができる等、充分に所期の目的を達成し得、実施
上の効果多大なものがある。As described above, in the oscillator according to the present invention, by providing a trimmer capacitor for adjusting the oscillation frequency in the case equipped with the crystal resonator, it is possible to reduce the stray capacitance in the oscillation circuit section, and also to reduce the stray capacitance outside the above-mentioned stray capacitance. It is possible to reduce changes caused by mechanical factors, and even when using a small crystal resonator with a particularly high natural frequency, it is possible to obtain a stable oscillation frequency.Furthermore, the above-mentioned trimmer capacitor allows for easy and accurate oscillation. The desired purpose can be fully achieved, such as being able to adjust the oscillation frequency, and there are many practical effects.
第1図は結晶振動子としての水晶振動子を用いた一般的
な発振回路を示す回路図、第2図は第1図に示す発振回
路における水晶振動子の等価電気回路を示す図、第3図
は本発明に従う発振器の一実施例を示す側断面図、第4
図は同発振器に用いられる結晶振動子のケースに設けら
れる発振周波数調整用のトリマーコンデンサの一実施例
を拡大して示す側断面図、第5図は同トリマーコンデン
サの他の実施例を示す側断面図である。
1.11・・・・・・結晶振動子としての水晶振動子、
2・・・・・・インバータ、4,16・・・・・・発振
周波数調整用のトリマーコンデンサ、6・・・・・・ケ
ース、γ・・・・・・下部ケース、9・・・・・・上部
ケース、15・・・・・・ケースに塑成された凹部、1
7,26・・・・・・電極、21゜29・・・・・・ロ
ータ電極。Fig. 1 is a circuit diagram showing a general oscillation circuit using a crystal resonator as a crystal resonator, Fig. 2 is a diagram showing an equivalent electrical circuit of the crystal resonator in the oscillation circuit shown in Fig. 1, and Fig. 3 FIG. 4 is a side sectional view showing one embodiment of the oscillator according to the present invention.
The figure is an enlarged side sectional view of one embodiment of a trimmer capacitor for adjusting the oscillation frequency provided in the case of a crystal resonator used in the oscillator, and Figure 5 is a side sectional view showing another embodiment of the trimmer capacitor. FIG. 1.11...Crystal resonator as a crystal resonator,
2... Inverter, 4, 16... Trimmer capacitor for oscillation frequency adjustment, 6... Case, γ... Lower case, 9... ... Upper case, 15 ... Recess formed in the case, 1
7, 26...electrode, 21°29...rotor electrode.
Claims (1)
、このケース内に設けられた結晶振動子と、このケース
の一面の表面に形成された凹部と、この凹部内に形成さ
れ前記振動子の端子に接続された電極と、前記凹部内に
設けられた前記電極を覆う状態で装着された絶縁層と、
この凹部に設けられた蓋部と、この蓋部に回転自在に設
けられ前記電極と対向して形成された電極を一体に有す
る軸とを備え、前記軸を回転することにより前記各電極
間における容量が変化するように構成されていることを
特徴とする発振器。1. A case that is almost box-shaped as a whole and has a constant wall thickness, a crystal oscillator provided in the case, a recess formed on one surface of the case, and a resonator formed in the recess for the vibration. an electrode connected to a child terminal; and an insulating layer installed in a state covering the electrode provided in the recess;
The lid part is provided in the recess, and the shaft is rotatably provided in the lid part and integrally has an electrode formed opposite to the electrode. An oscillator characterized in that the capacitance is configured to vary.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50126794A JPS5834042B2 (en) | 1975-10-21 | 1975-10-21 | Hatsushinki |
GB42966/76A GB1528076A (en) | 1975-10-21 | 1976-10-15 | Crystal controlled oscillator |
US05/734,466 US4101848A (en) | 1975-10-21 | 1976-10-21 | Oscillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50126794A JPS5834042B2 (en) | 1975-10-21 | 1975-10-21 | Hatsushinki |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5250151A JPS5250151A (en) | 1977-04-21 |
JPS5834042B2 true JPS5834042B2 (en) | 1983-07-23 |
Family
ID=14944098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50126794A Expired JPS5834042B2 (en) | 1975-10-21 | 1975-10-21 | Hatsushinki |
Country Status (3)
Country | Link |
---|---|
US (1) | US4101848A (en) |
JP (1) | JPS5834042B2 (en) |
GB (1) | GB1528076A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5652906A (en) * | 1979-10-04 | 1981-05-12 | Toshiba Corp | Oscillating circuit |
JPS621415U (en) * | 1986-05-14 | 1987-01-07 | ||
JPS6443741A (en) * | 1987-08-10 | 1989-02-16 | Florm Kk | Water injecting, pressure testing, and water discharging device for pressure container |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496865A (en) * | 1972-03-20 | 1974-01-22 | ||
JPS5037469A (en) * | 1973-08-02 | 1975-04-08 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3289055A (en) * | 1965-09-30 | 1966-11-29 | Suwa Seikosha Kk | Temperature compensating capacitor for quartz crystal oscillator |
CH526851A (en) * | 1969-09-12 | 1972-04-14 | Suisse Horlogerie | Variable capacitor for applications in the field of time measurement technology and the use of this capacitor |
GB1400101A (en) * | 1972-04-06 | 1975-07-16 | Suwa Seikosha Kk | Electronic oscillator circuit for a timepiece |
JPS5012955A (en) * | 1973-06-05 | 1975-02-10 | ||
US3838566A (en) * | 1973-06-13 | 1974-10-01 | Time Computer | Solid state watch having coarse and fine tuning |
-
1975
- 1975-10-21 JP JP50126794A patent/JPS5834042B2/en not_active Expired
-
1976
- 1976-10-15 GB GB42966/76A patent/GB1528076A/en not_active Expired
- 1976-10-21 US US05/734,466 patent/US4101848A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496865A (en) * | 1972-03-20 | 1974-01-22 | ||
JPS5037469A (en) * | 1973-08-02 | 1975-04-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS5250151A (en) | 1977-04-21 |
GB1528076A (en) | 1978-10-11 |
US4101848A (en) | 1978-07-18 |
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